<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        // 已知一个地址"http://www.laoli.com?a=1&b=2&c=3",把查询字符串转为对象{a:1,b:2,c:3}
        const url="http://www.laoli.com?a=1&b=2&c=3";

        const result=url
        .split("?")[1]
        .split("&")
        .reduce((p,c)=>{
            const [key,value]=c.split("=")
            p[key]=value
            return p
        },{})
        console.log("result",result);
    </script>
</body>
</html>